// program 10.10
// sum_arr1.c -- 数组元素之和
// 如果编译器不支持 %zd , 用 %u 或 %lu 来替换它
#include <stdio.h>
#define SIZE 10
int sum(int ar[], int n);

int main(void)
{
	int marbles[SIZE] = {20, 10, 5, 39, 4, 16, 19, 26, 31, 20};
	long answer;

	answer = sum(marbles, SIZE);
	printf("The total number of marbles is %ld.\n", answer);
	printf("The size of marbles is %zd bytes.\n",
			sizeof marbles);
   
	return 0;
}

int sum(int ar[], int n)		// 这个数组的大小是？
{
	int i;
	int total = 0;

	for (i = 0; i < n; i++)
	{
		total += ar[i];
	}
	printf("The size of ar is %zd bytes.\n", sizeof ar);

	return total;
}
